/***************************************************************************
 *   Copyright (C) 2008 by Eduardo Gurgel Pinho                            *
 *   edgurgel@gmail.com                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
***************************************************************************/

#ifndef __LOCAL_ILLUMINATION_H__
#define __LOCAL_ILLUMINATION_H__

#include "math/vector.h"
#include "common/color.h"
#include "common/scene.h"
#include "object/object.h"
#include "math/ray.h"

namespace Sirat {

namespace Path_Tracing {

class Local_Illumination {
public:
	static Common::Color calculate_color(Object::Object*,const Math::Ray&, const Math::Vector&,Common::Scene*);
private:
	static Math::Vector calculate_reflection(const Math::Vector&,const Math::Vector&) ;
	static double calculate_diffuse(const Math::Vector&,const Math::Vector&) ;
	static double calculate_specular(const Math::Vector&,const Math::Vector&,const Math::Ray&,const double) ;
};

}

}

#endif

